Pistol



Jan. 5, 1932.

c. N. BRDTHERSON "118 39330 EISTOL Original Filed Feb. 4, 1928 4 Sheets-Sheet '1 I, g .16 J I 66 10 5,2 I 1 6'0 62 41 is @MaM/ QY /4 j 1 Jan. 5, 1932. c. N. BROTHERSON 3 PISTOL Original Filed Feb. 4, 1928 4 sheets sheet 2 1932- c. N. BROTHERSON 1,339,330

' PISTOL Original Filed Feb. 4, 1928 4 Sheets-Sheet s 5, 1932. c. N. BROTHERSON 1,839,830

PISTOL Original Filed'Feb. 4, 1928 4 Sheets-Sheet 4 Patented Jan. 5, 1932 tree osei' rrsroiz Application filed February 4, 1928, Serial No. 251,833.- Renewed May 12, 1931.

The present invention relates to a pistol, and aims to provide a novel and improved device of this character which will provide for automatic operation as well as manual operatiombet-ween the explosion of cartridges therein, thus providing an automatic and bolt locking pistol. V

Another object of the invention'is to provide a pistol of this general character having a rigid frame with the front and rear sights in fixed position, and for permitting the holding of the pistol with both hands withoutdanger of injury thereto this being accomplished by having the sliding breech block arranged interiorly of the frame.

A further object of the invention is the provision of ample safety devices for preventing acoidental discharge of the pistol, said safety devices consisting of a lock for the sear when the grip is released, a manually operated lock for these'ar, and a trigger safety for preventing operationof the hammer when the magazine is removed.

A still further object of the invention is to provide a slidable firing pin on a sliding breech, said firing pin, being moved by ongagement with anabutmentupon rearmovement of the breech, so that said'iiring pin besides firing cartridges acts in conjunction with an extractor on the breech for ejecting shells from the pistol.

As another object of the invention, I provide a pistol consisting of three main units, namely: barrel and slide casing, sliding breech, and handle section, which are held-in operative assembled position by a main assei lbly bolt passed through said slide casing and handle section; thus the pistol may be easily and conveniently taken apart for cl aning, etc, upon removal of the assembly bolt. i

It is also an object of the'inventiontoproride a pistol of the above indicated character, which is substantial in construction and which will be thoroughly elllcient andpiactical in use. i

lz ith the foregoing-and other objects in view, which will be apparent as the description proceeds, the invention resides in the construction and arrangementofparts, as

hereinafter described and claimed, itbeing understood that changes can be made within the scope of whatis claimed, without departpanying drawings, wherein ing from the spirit of the invention.

The invention is lllustrated 1n the accom- Figure 1 is an elevation of one side of improved pistol,

Figure 2 is an elevation of the other side thereof,

Figure 3 is a vertical longitudinal section through the pistol, showing the end of the barrel broken away, the mechanism'being illustrated in the position ready for firing,

Figure l is a similar view showing certain parts in elevation and the mechanism with the breech in its rear position after firing, v Figure 5 is a longitudinal horizontal section taken on line 55ofFigure 3,

' Figure 6 is a vertical section taken on line 6-6 of Fi ure 5 and bein a view somewhat similar to F ures 3, and 4:, showing thedevice in a position when the hammer'engages the firing pin prior to rearward movement of the breech block, v Figure Tis a rear elevation of the pistol, Figure 8 is vertical cross sectiontaken on line 88 of Figure 6,

Fi ure 9 is a fra ment-er section taken on line 9-9 ofFigure 3, r I

Figure 1.0 is a perspective view of the breech removed from the pistol,

Figure 11 is a fragmentary vertical section taken on line 1111 of Figure 8,

Figure 12 is a fragmentary horizontal cross section taken on line 12-12 of Figure 3-, l

Figure 13 is a fragmentary section taken on line 1313 of Figure 6, and

Figure 14 is longitudinal. horizontal section taken on line 14-14 of Figure -The pistol constructed in accordance with my invention consists of three -main units,

the barrel and hollow casing section A, the slidablv mounted breech B and the handle 7 section G containing the magazine D. The barrel and easing SfiClJlOll A are attached to L 1 l the handle section C whiietne sliding breech "is-mounted within the casing A and upon the upper surface of the handle section C.

of the gun.

The casing of the section A is rigidly carried by the rear, end of the barrel 16 which rel 16 is mounted a tront sight -22, wherebysaid front and rear sights are carried by rigidly attached members, so that they retain remain in a fixed position and .donot change With relation to each other during operation In theopposite side Walls 18 and 19 :o-fthe "casing 15 directly opposite each other is a pair of grooves23 into *Whichen-gage longitudinal ribs 24 carried by the handle section forlorming a connecting .means for attachingithe section A to .thesection (1, The handle 7 section. C has a forward extension 25 between the sidewalls 18v and 19 otthecasing 1'5 at the forward ends thereof and adjacent their bottom edges so that said forward extension I terms the lower Wall of a chamber, 26.; The 7 forward end oi 'tthisiextensioi-i is notched, as

at to :correspondwi-t-h the end portion 20 0f the, ca sing 15 'liorinterlocking engagement.

- In .order that the barrel and easing sectionA Will -be held against sliding movement With relation tothe hand-1e sect-ion C; an assembly bolt 28 extends through the -opposite side Walls l8 and 190i the casing adjacent their rear "ends and through the r-ear'portion of the handle section C.- Thns it can seen the' barrel and easing section A" held gagainst movement away from theesection G by the grooves and ribs 23 and'24 respectively and the interlocking connection 27, and-that said connected barreland casing section are 7 held against sllchng mevernent with relation 'Slidable betweentheside walls 18 an'd 19 to'th'e handlesection Cby the assembly bolt of thecasing 15 is a breech 29, consisting ozt breech bloclnZlO having extending rearw ardlytherefroin a pair of spaced bars 31 andfl32 which are connected together at theirreat ends by a block 33,Wl1i'le extending forwardly of the breechblock 30 is another pair 7 of spaced bars 34 and 35 which have "their forward ends connected together byqineans of a block 36; The bars '34 -andj35 are-ar- Irangedf on .a plane below the 1010611130 and slide Within the compartment 26 'tormed by theforward endsgof the sidewalls 18 andf 19 I offthe" casing 15 the torivardly extend Y sing portion {25 ot the handle section 16; ;Ex-

tendingupwardly from the rear'p'ortion of said forward. extension between the-bars 34 and 351's a lugB'Z'whi-chis engaged by the" head 38 oragiiide pin 39 extending forfwardl'y through opening 40 in" the block 36 and has a coiled retracting spring 41, which engages against the blockf3-6 fand against the head 38 of the guide pin. The

purpose of the retracting spring 'isto yield ably hold the-breechblockforwardly in e'ngagement with the rear end of the barrel 16.

I When infiring position, the breechblock [305i-s at the rear end of, the barnel 16 in alignment with thebore 41so as to holdja cartridge during the firingthereof, Slid-' Table in-the bre'ec'liblock.30isa fir-ingpin 42 adapted to strike the rim of the cartridge in T thebarrel 16 upon forward movement of said pin, said pin Working in aj bore '43, enlarged as at 45, torece1ve a coil spring 46 encircling the ,firinglpinl 'Gne end ot the'coil spring engages the fliorward end of "the bore -45 and t-he -other *end engages an 'en-' larged end lT-Qnsaid firing zpin so as to'yieldably hold it in rearward position. v The en'- ,-lar;ge.d;portion 47 otzthe firing (pin is notched, 7 it as'at 48, into which extends a key pin'49 for .pneventiing the tiring from being entirely foreedfrom the bore Within whichlit slides, it being understood that thenotch 48 is of ksnfiicient length, to permit required movement ofthe firing pin. v

- As the rear end ofjthe casing 1 5vis open, it ean be seen .that w-hen :a cartridge fired the explosion thereof will forcethe slidable 2 breech backward against tension of the re- 7 tractor spring 41 and that after the torce or thezexplosion is relieved said spring will re; turn the'breech toits forward position into engagement with the rear ender. the bar-rel.

.As i-t is neoessaryfto-remove the shell of the cartridgetrom the bore 41" of the barrel, an

extractor 50 "carried by the breechblock 30;

ont-he iorward en dwf-which i s1a hook portion 51 engaging-therim'ottheshell in order to cause-saidshell to he moved .rearwardiy '7 withthebreech. The extractorfiO isloca-ted in a recess :52 in the side of the-breechblock and piVoted-thereinby means of a V6111 i cal pin 53iextending-through said'extractor and into thebreechblock, said pinbeing-in- .t-ermediate. the'endsi'ot-the extractor, the 5 1 V latter beingengageid atjthe endthereof op posite to the hook portion 51 by a small coil spring 54, Within a recess 55 in the breechblock. Itcan be seen that the coil. spring the hook zshaped-portionhl of theex g tractor inga position so as toen gage the rim 025 the shelhsaid hook shaped portion'ha ving a beyeledtaee 56 on the 'fo-rw'ard end thereof to permit it to move forwardly *of therim ivhen'thebreeoh is ino 'edIin a forwarddirec at itsrear end-is an-abutment lug 57 against I which the? firing pin engages I i vhen' the; breech is moyedrearwardlylso a sfto force tion, On the. side. Wall 19Qofthe-casing 15 the firing pin forwardly "in thebreeehblocls and cause theshell to be swung toa cocked 4 ;;positioirdneto"the fact-that the hook portion 51 of} the extractor is'still in engagement its 7 therewith. Upon further forward movement of the firing pin in the breechblock, the spent shell will be thrown through an opening 58 in the side wall 18 of the casing 15. At the forward end of the breechbloek is a pair of projecting pins 57 for the purpose of preventing side movement of a cartridge during the period the hook shaped end 51 of the extractor is engaged over the rim of the cartridge, saidforwardly projecting pins engaging the opposite edge, of the rim of the cartridgefrom that engaged by the extractor and. at points above and Lelow the firing pin 42. "In order that provision may be made for having the pistol hand operated I provide a locking bolt 59 for preventing the. breech from being forced rearwardly by th e'explosion of a cartridge, said bolt having the opposite ends 61 and 62 reduced and journaled in the breechblock 30 and upstanding portion 68 of the block 38 with a lug 6st at one side so that upon turning movement of the bolt said lug will be moved to a position in engagemerit with the abutment 57 011 the side wall 19 of the casing; thus the lug 64 will prc ventthe breech from slidingrearwardly on the explosion of a cartridge. Upon the rear end of the reduced portion 62 of the locking bolt is secured a turn button 65 for manipulating the locking bolt so that the pistol may be used automatically or hand operated. Gne side of the turn button 65 is arcuate. as at 66,

bly engaged by a small leaf spring 69 carried by an extension 70 onthe rear portion of the block 33. The shoulders 67 and 68 are located on the turn button so as to hold the locking bolt in either of its positions, name ly out of engagement therewith or in engagement with the abutment 57. In orderthat the turn button may be easily turned, a finger 71. projects therefrom to be engaged by ahand of the operator. r r

The handle section C consists mainlv of a casing 72 having opposite side plates 73 and 'i'd connected together at their forward edges by a wall 75. and in rear of this wall in spaced parallel relation thereto is a partition wall 76. Said forward wall 75. partition wall 76 and side plates 73 and 74' form the magazine compartment in o'which the magazine D is slid from the lowerend of the handle section or stock C. The upper ends of the front wall and partition wall 7 6 terminate below the upper end of the handle section Cand the upper end of the magazine IS'SHPDOIfQd bv means of a pair of spaced blocks 78 and 79 arranged between the side plates 73 and 74, the block'TS heretofore referred to by the numeralBT, being forwardly of the upper end ofthe magazine; while wardly thereof. V v The magazine D consists of acasinghzr:-

' and provided with a pair. of shoulders 67 and 68 adapted to be yieldsthe block 79-is rearand a base 83, the latter extending partially into the casing and has a pin 84 passed therethroughand through the opposite side walls 80, so that said base is firmly connected to the casing. At the forward end of the base is a forwardly extending lug 85 to be engaged by a finger of the operator in order to remove the magazine from the handle section or stock C. In the upper portions of the side walls 80 of the magazine D are longitudinal slots 86. 87, and 88,, so as to'form spring fingers 89, 90, and 91 for engaging the uppermost cartridges contained in the magazine so as toyieldably hold said cartridge until released. By referring to Figures 4, 6, and 8, it can be seen that-the upper ends of the fingers. engage a cartridge, and in Figure 8 the fingers 91 are slightly curved inwardly so as to prevent a cartridge from moving beyond the ends thereof, said curved portions being designated by the numeral 92.

Within the magazine D is a slidable cartridge push block 98, which has its lower portion reduced in thickness, as at 9 1, and about which is arranged the upper end of a coil spring 95, while the lower end of the coil spring 95 engages the base 83. Thus it can be seen that the push block 93 will be urged upwardly so as to move the cartridges to the upper end ofthe magazine. I l

By referring to Figures 3, 6, and 8, it can be seen that when the breech 30 is in its forward position against the rear end of the barrel 16 the upper end of the magazine is positioned directly thereunder. On the lowerrear end, ofthebreech 30 is a depending lug 96, which has a vertical shoulder 97 and a rearwardly inclined face 98,'the purpose of which will be set forth as the de cription proceeds, while at the forward lower portion of the block 80 is arranged a forwardly extending lug 99, which has its lower surface gradually rounded, as at'100. The forward portion of the lug 99 is adapted to engage the rearend of the uppermost cartridge 101 in the magaZine'ZZ' as soon asthe breech starts tomoveforwardly, thus forcing this cartridge forwardly until the rear end thereof has passedv from under. the curvedportions 92 of the .upper ends offthe fingers 91 and the forward end of the cartridgehas started to enter the bore 41' of the barrel .16; At such time, the spring 95 in the magazine will force the cartridge up wardly above the fingers91 and the forward end 102 of the breechblocklwill rce the cartridge into the bore'of the barrel. A small leaf spring 103 is, carried by the upper wall 17 of the casing 15' so as to preventthe forward end of a cartridge beingforced past the bore 4-1. thus aiding in aligning the cartridge with the bore prior to itsentrance therein. The upperendof the block .7 8 is forked, asat 104,,while a notch-is provided i s in the rearend of the barrellti'at thelower portion of the bore which also provides guides for directing the. forward end of the I eartridgein the bore;-. The notch 105' re ceives the forwardly extending lug 99 when the breech is in; its forward position. Itv

can be seen-that when a cartridge is" forced into the barrel the hook 51 of the extractor will be forced outwardlygso as topermit the same to engage overjthe rim of the cartridge. In order that the hookfishaped' portion v51 of the extractor 5O will not'engag'e 'the'end of the barrel '16: a notch 106 is provided in the end of the barrel for receiving the hook 51 upon forward-movement of the breech.' I

' 'Extending throughthe handle section or stock .C' and journalled in the side plates 7 3 and 74 thereof'is a pin 107 which'pivotally' supports a hammer 108, saidhammer havingon its free end an enlarged head 109. The pin 107 is located so that when the hammer 108 is swung on its pivot in a forward direction the head 109 thereof will engage.

the enlarged end 17' of the firing pin soas r to discharge a cartridge. By providing the inclined surface 98 on the lug 96 of the breech, *the hammer 108"will be moved backwardly- Lipon rearward movement, of the breech for recocklng the hammer;

2 ferring' to Figure 4 of the" drawings, it can be seen how the sliding breech 30willcause the hammer 108 to be moved backwardly. Below the pivot pin 107 is another pivot pin 110;the opposite ends of which are received in'the side plates 73 and'74 of-the handle section or'stock C, upon which-is pivotally mounted a sear 111, the. pin extending 1 through the sear intermediate its ends. The

upper end of the sear engages a shoulder 112 on the hammer adjacent the pivot thereof for holding the hammer in' cookediposition. In order that the searwill be yieldably held in a position to engage the shoulder 2 '112when the hammer is movedbackwardly a leaf spring 113 is V I I which is attached to the block 7 9, while the other end'engagesthe sear, To one side'of the pivot of the hammer 108 is'fa'sm'all'ex tension' 113 which'is forkedand in which is a pivot pin ll li sup'porting a Tshaped stirrup 115 providing a crossbar-116' atthe free end thereof enga ged by theupper' forked end'117 of a spring me1nber 118, Thesp'i'ing member "118; is substantially uesha'ped to provide a pair of legportions 119; and 120,-

the leg portion 119-ha'ving theg forked'e'nd 1 17'thereon and being of greater 'length'than' 'theilegportion 120, while the legportion 120 engages 1a small lug 121 at the upper end of the partition 'wall 76fand the side thereof engages the rear side'of said partition .76, as "clearly shown in Figuref'3 of the drawings; The bightpo rti0n122 of the U-shapedspring. member 118 is curved slightly to o'ne side and By re -V provided, one; end of;

engages into a small recess 123 in. the lower end .of a movable grip member 124. The genera-ltendency of the legs'119 and 120 is to 'move awayfrom each other; As the leg 120 "is-heldfagainst movement, thev leg 119 will form a meansfor throwing the head 109 of the hammer l08gforwardly as soon as the sear. 1-11 is moved-from engagement with the notch'.112"on the hammer. -The lower end another function :which will beset forth as thedeser'iption proceeds. i 1 At the inner sides of the side 1m 73 and 74 of the handle section or stock are recesses 125, whichreceive side bars 1260f a sear trip 127 (Fig {1) ,said bars extending beyond opposite sides ofthe magazine 77 .1 The opposite ends ofithe b'ar's 126 are connected at their forward and rear-ends by cross-pieces 128 and 129, respectively.. The forward cross-I piece 12 8.has a forwardly extending lug.130

which is received in a' small notch 131 in the 1 rear side of a trigger' 132, said notch'bei'ng are rangedadj acentthelower free end of the Vtrigger, The upper end ofthetrigger is piviotal g ly suipportedjby means of aqpivot pin 133 which 1 extendsthrough the trigger and into' the opposite'side'plates 7-3 and 7 4 of the handle section'or stock; "In order-that the trig ger trip 127 will remain in operative relation with the trigger,"a leaf spring 134 is carried;

' by-the forward endof the sear trip 127: and

has itsupperend bearing'against the' front 7 wall 81 of th'e magazine. I Thus it can be seen Vthatthe general tendency of the sear trip is toremain in its forward'position, which will return the triggerto its initial or forjwardpo the bars--l26qof theisear trip '-is-f"pro-.

1 vided 'with ashoul'derj v13 5 which engages the --lovverdepending end of theCsear-so as it'd-swing the same onits pivot andthus V causelthe iippe'r end of said sear to be disengaged from tl'lQ-IiOtCllfllQOf the hammer 108 no against tension of thesear spring 113. It can be seen that the'leaf spring 134also holdsthe jsition; v The rea'r connectingportion .129 of V rear end of thes'ear trip upwardly and in en- 2 r handle section ,or stock thefree end of the moved.

i 'The forward bar 35 ofthe'sliding breech is:

"provided'with' a camsurface 136 which en V 2 gages- .acam'surface'137 ion the upper end 1 aefing'er f l 38' carried by 'oO Vne of the side bars 126 of the sear trip; Therecess in thefsidie providing such} cam surfaces are such that "plate a extends npwardlyso asto' receive -thefinger 138' and is of suflicient size to permitnmovement ofsaid finger therein.' By

of the U-shaped springmemberllS forms when the sliding breech movesfirearwardly they will engage, thus forcing the seartrip 127 downwardly so thatthe rear end having the shoulder 135 thereon will be disengaged from the sear to prevent the disengagement.

of the sear from the notch 112 in the hammer 108 until the sliding breech has moved to its" forward position. This mechanism provides 0 is formed by the movable member 124,

which is pivotally mounted atits lower end, as at 139, the pivot pin extending through said movable member 124 and through the opposite side plates 73 and 74 of thehandle section. At the point of the movable member 124, the same is enlarged which permits the forming of the recess 123 which the bight portion 122 of the U-shaped spring 118engages, said enlarged-portion also forming abutment for one end of acoil spring 140 which is positioned in a recess 141 arranged in the lower end of the partition 7 6. r The op posite. end of the coil spring 140 engages an inwardly projecting lug 142 carried by a magazine latch 143 that extends slightly under the base 83 of the magazine and may be moved-from beneath the same by sliding the magazine latch against tension of the coil spring 140. The recess 141 is enlarged at its inner portion and the lug 142 is of a similar shape so as toprevent the disconnection of the magazine latch from the handle section or stock C. lVhenthe magazine latch and coil spring 140 therefor are installed theyare placed in the recess 141 prior to the releasing of the pivot pin 139 for the movable member 124 through the side plates 7 3 and 74 of the handle section or stock C. It can be seen that the coil spring 140 will normally hold the magazine latch in a position to prevent removal of the magazine from the handle section or stock C and that the U-shaped spring 118 engages the movable member'124 above the pivot thereof so as to hold the movable member 124 outward with the upper end in engagement with the lower end of a rear spacing block 144, the same being the block through which the assembly bolt 28 extends.

The recesses 125 in the opposite side plates 7 3 and 74 of the handle section or stock G extend upwardly at the point where the upper end of the movable member 124 is arranged so that said upper end may slide within said recess. The upper portion of the movable member 124 is of a channel shapedjconstruction presenting a back portion 145- having forwardly extending side portions 146 which are received in the recesses 125. One of the side portions 146 isprovided; With a notch extendingtherein from its forward upward edge, said notch being desig-z nated by the numeral 147. Extending into i the notch 147 is the free end149 of. a pivoted sear locking member 148 pivoted upon :the bolt 107 which pivotally mounts the hammer 108 and. carries at the side thereof 1 a right a-ngularly extending lug 150 which is adapted to be moved downwardly when the sear locking member 148 is swung on its pivot so as to cause .sa1d lug to move in front of the 'upper end of the sear 111 to prevent disengagement of the upper end of the. sear from the notch 112 in the hammer 108. From this structure it canbe seen that when the pistol is held in the hand of the operator it will be necessary to force the movable member 124- forwardly when the trigger is pulled'rearwardly. pivoted movable member 124, the free 'end 149 of the sear locking member is moved ina downward direction so as to cause theright. angularly extending lug 150 to be moved ups; wardly and out of the path of movement of Upon forwardv movement'of "the.

the sear 111 which will permit said searto'- release the hammer. When pressure is relieved. on theymovable member 124,.t'he' U-. shaped spring 118 will return the same to its initial positionand, the-notch 147 in said movable member will causethe free end; orv

finger 149 to be moved upwardly and-theright angularly extending lug 150 to be moved in the path of movement of the sear so as tohold said sear'against movement out of engage-e ment with the notch 112 of the hammer 108'.

In order that the sear 111 may-be manually locked againstdisengagement'from the notch 112 in the hammer 108, there is a small arm 151 provided with a right angle extension 152, the arm being integral with'the pivot pin- 107 arranged upon the opposite sides of the.

hammer 108, as clearly shown in Figure 13 of the drawings.

handle section or stock C by means of a lever 153 at one end thereof, and when it isdesired The pivot pin 107- =may be. turned within the side plates 73 and 7 4 of the to manually lock the sear from engagement with the notch 112 in the. hammer said lever,

is moved downwardly so that the right angularly extending portion 152 of the arm 151 is in the path of movement of the sear to prevent disengagement of the sear from the not'chi112, thus providing another safety devicefor my improved pistol. 1

In operation, to remove the magazine D fromthe handle section or. stock C the-magazine latch is slid rearwardly until th'e for ward end by forcing thereof disengages the magazine and the finger engaging lug 85 downwardly the magazine will slide fromthe handle section or stock C. The magazine is filled with cartridges by sliding them inwardly, rim first, under the curved portions, 92 of the fingers 91, which will force the push block'93 downwardly;against' tension'o f the? coil s ring 95'."The magazine isl-thenfreplace in the handle section or stockjCfa'nd the magazine latch permitted to return seas 5 to engage the lower portion of -the base 83 of the magazine. Ifthe pistol isto befused'as an automatic the turn button is-arranged so that the lug 64 on the locking bolt 59 extends V downwardly and out of engagement with the 1 abutment shoulder 57. By then engaging the 7 turn button and pulling'the sliding breech 'backwardly against tension of the retractor spring 41,.the hammer 108 will bemoved rear- ,wardly to aco'cked positionwith the sear 111 in engagementwith the notch 1 12 in the ham-i mer; said sear serving the purpose of holding the hammer in cockedpo'sition, The turn buttonis then released so as to permit the breech to return to its forward position. As soon as the breech starts to return,'the forwardly ex tending lug 91 thereon willengage the upper most cartridge in the magazine and slide the same forwardly. 1 The cartridge-is guided into the bore 41 of the barrel 16 by the in:

clined face on the block-7 8 and thefingers 89 and'90 of the magazine. The cartridge is" moved forwardly until the rim thereof pre vents forward movement thereof at which timethehooked end' 51'of the extractor 50 Will forced outwardly and permitted-to engage 1 over the rim'of the'cartridge; The spring 103' together with the forwardly extending pins 57 f and the hooked end 51 "of the extractor will aid in properly supporting the cartridge during the forcing thereof into the-bore of the barrel I moving the finger engagingmember 153 on n being bad due to the connection of the finger.

The manual sear lock 'is then raised by the handle section 01 Stock in {an j P direction, which willcause the angularlyj extending portion'52to move above the upper before the trigger will release the sear from theshoulder'112 on the hammer, as the ans gularl'y extending 'portion 151 on the member- '148' is "arranged in advance of the upper end of the sear and will prevent movement thereof. The right angularly extending portion 150 is raised upwardly by swinging the member 148011 the pivot pin 107, such movement 149 ofthe member l48jwith the movable meme her 124; of the handle section or stock. The pull on the'trigger will move the seartrip real-weirdly, and as the same engages the lower: end of the sear, the same is'sw'ung on its pivot against tension of'the sear spring 1 13; -As soon asth'e upper end of" the sear -When,it is necessary to re I and remove theshellbyhand; the turn butdisengag s the shoulder near the hammer 7 108, saidha-mm'er-will be forced forwardly by I the 'U -s'haped spring 118, The head'109 of the hammer will strikethefenlarged' rearend of the 'rfiring pin 42 and force the same for-,

wardly against tension of the. coil spring -46 and-causethe forward endof the firing-pin to snddenlyengage the rear of the shell of i the cartridgeiadjacent the rim thereof. yAs soon :as the cartridge is fired, the, explosion thereofwill cause the breech to be moved rearwardly the hookshaped. portion 51', of the extractor 50 has engaged over the rim of the shelhthe shell willbe drawn from therear end of the barrel and'moved with theb'reech. Prior to the extreme rear movement of' the breech; the rear end offthe firin'g pin will'engage'the 'abutment'shoulder- 57 which a V will cause said -fi'ring pin to be moved'to still further forwardpesition. 'Asthe shell is not rigidly s'upp'ortedat such time, the

firing pin wvill cause the sai ne to be swung due to the engagement of the hook, shaped 8 member: 51 with the rim thereof until said hook shaped member hasreleased the shell and iti'sthrownioutw'ardly through the open ih .58 inthe' side wall 18 of thecasing 1-5 A1so, the rearward movement ofthe breech will cause the hammer to be returned to-its initi alposition, due to the factthat the in" clinfed surface 98 engages l'il lrh il-d of the hammer and forces the hammer rearwardly as shown in Figure! of thedrawings. :At

s'uch time; the" upper end of the sear will engage the shoulder 11 2 of the hammer andf thusholdthe hammer'in such position when r the breech returns to its forward position.

Upon} the re'tnrning of the breechg another cartridge isfen'gaged by the f(');rwardly extendin'g lug99 and forced into the rear'end offthewbore of the barrel." Figure 3*shows the position of the various elementswhen the pistol I is" about to be, fir d. Fi ure a shows the; various-p rt in position when the breech-is at its rear endbf movement. Figure 6 'sh0ws theva'rious parts, at thetime 1 of a manage, the'l atte'r; illustrating the nammerios in engagement with the firing pin, with the trigger 132 and {movablemember 124 indepressed positioni lock the pist o l ton 6'5;lS.-t111l1dsO thalllille lug; 64v engages the abutment shoulder'57, which-will prevent rearwardmovement ofthe breech upon the firing of, a cartridge. After acartridge hasbeen fired, it is necessary to turntheiturn s button 65 so'that the lug 6'4 disengages the abutment shoulder 57 and "thenmpull the breech rearwardly against tension of the re-L tractor spring The removalfof :the sh'elli from theibore of the barrel and the placing of a new'cartridgein the borei's thesameas when the 1 pistol is operated a'cltomatical'ly,

lUO

' greater distance than the bar 34: and is provided with a cam surface 136 which engages the cam surface 137 of the upstanding finger 138 carried by the sear trip 127, such elements being clearly illustrated in Figure 11 of the drawings, which will cause the rear end of the sear trip to be moved downwardly and held in such downward position until the breech has returned to its forward position, thus preventing the releasing of the hammer to fire another cartridge prior to the proper returning of the breechblock 30 to a position in engagement with the rear of the barrel 16.

As previously stated, when the magazine is removed from the handle section or stock G, the rear end of the sear trip is permitted to drop, due to, the fact that the magazine has been moved to a position so that there is nothing to engage the spring-134 in order to hold the rear end of the trip in proper position. This prevents the firing of a cartridge remaining in the bore of the barrel during the period the magazine is removed from the pistoL.

Having thus described my invention, what I claim as new is 1. A pistol comprising a casing including a barrel and a handle section, a sliding breech arranged in said casing, a block on said breech adapted to engage the rear end of said barrel when the breech is in its forward position, said breech being adapted to be moved rearwardly by the explosion of a cartridge in the barrel, spring means for returning said breech to its forward position, a firing pin carried by said breech block, a pivoted hammer having a shoulder hereon, a spring urged sear adapted to en age the shoulder on said hammer to hold the same in cocked position, spring means for forcing said hammer forwardly upon release thereof by said sear, a sear trip adapted to engage said sear 1n order to move the same out of engagement with the shoulder of said hammer upon movement thereof, a trigger ar ranged for moving said sear trip, a magazine for feeding cartridges to the barrel of the p1stol upon movement of said sliding breech, a

' leaf spring carried by said sear trip and in engagement with the magazine for holding the sear trip in position in engagement with the sear, and an extension on said sear trip and adapted to be engaged by said sliding breech when the same is in its rearward position so as to force said sear trip against tension of said leaf spring out of engagement with said sear.

2. A pistol comprising a casing including a barrel and a handle section, a sliding breech arranged in said casing, a block on said breech adapted to engagethe rear end of said barrel when said breech is in its forward position, said breech being. adapted to be moved rearwardly by the explosion'of a cartridge in the barrel, spring means for returning said breech to its forward position, means for firing a cartridge in the barrel, a locking bolt carried by said sliding breech, an abutment shoulder arranged on said casing, a lug on said locking bolt, and means for engaging said locking bolt in order to turn the same into engagement with said abutment shoulder in order to prevent sliding movement of said breech by the explosion of a cartridge in the barrel.

3. A pistol comprising a casing including a barrel and a handle section, a sliding breech arranged in said casing, a block on said breech adapted to engage the rear end of said barrel when said breech is in its forward position, said breech being adapted to be moved rearwardly by the explosion of a cartridge in the barrel, spring means for returning said breech to its forward position, means for firing a cartridge in the barrel, a locking bolt carried by said sliding breech, an abutment shoulder arranged on said cas ing, a lug on said locking bolt, means for engaging said locking bolt in order to turn the same'into engagement with said abutment shoulder in order to prevent sliding movement of said breech by the'explosion of a cartridge in the barrel, and means for yieldably holding said lug on said locking bolt in either of its positions.

4. A pistol comprising a casing having a barrel and a handle section attached to said casing with longitudinal ribs at the inner faces of the side walls of said casing, a handle section having side walls provided with longitudinal grooves for slidably receiving said ribs ofsaid casing, a forward extension on said handle section forming a bottom wall 7 of a compartment below the rear portion of said barrel, asliding breech arranged above the handle section, barsv formed integrally with and extending forward from the lower portion of said breech into said compartment, the forward end of said bars being; connected by a crosspiece, a coil spring in engagement with the crosspiece and with the CHRISTIAN N. BROTHERSON. 

